LC72121V-D-MPB-E

Clock Generators, PLLs, Frequency Synthesizers Overview

The LC72121V-D-MPB-E is a high-sensitivity PLL frequency synthesizer designed for 3 V electronic tuning systems. It operates with a supply voltage range of 2.7 to 3.6 V and supports frequencies from 10 to 160 MHz using a built-in divide-by-2 prescaler. The device features serial data compatibility via the CCB interface, ensuring pin function alignment with the LC72131 series. Key technical attributes include an input sensitivity of 20 mVrms at 130 MHz, improved spurious radiation reduction through a redesigned ground system, and integrated deadlock clear circuits. It is housed in a 24-pin SSOP package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• High input sensitivity of 20 mVrms at 130 MHz for superior AM/FM tuner performance
• CCB serial data interface compatible with LC72131/M devices
• Built-in active low-pass filter utilizing an MOS transistor
• Integrated unlocked state detection and deadlock clear circuits

Clock Generators, PLLs, Frequency Synthesizers Applications

• High-performance AM/FM tuners
• Electronic tuning systems requiring 3 V operation
• Frequency synthesis circuits operating between 10 and 160 MHz

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the ordering suffix MPB indicates the SSOP24 (275mil) package with fan-fold packing containing 60 units per reel. Confirm Pb-Free status and check for specific shipping quantity requirements against standard tape-and-reel options like TML or TLM variants.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when interfacing with LC72131/M designs due to identical pin functions and CCB compatibility. Choose the LC72121V variant specifically for its enhanced input sensitivity and reduced spurious radiation compared to earlier generations. Ensure the application requires the 2.7 to 3.6 V supply range and 24-pin SSOP form factor.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the LC72121 family of CMOS LSI PLL frequency synthesizers manufactured by ON Semiconductor. The 'V' designation distinguishes it from the base LC72121 and LC72121M models by offering improved sensitivity and noise characteristics. The device serves as a direct functional replacement for previous generation synthesizers in radio tuning applications.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The LC72121V-D-TML-E and LC72121V-TLM-E are confirmed substitutes within the same SSOP24 package family. These alternatives differ primarily in packaging quantity and method (Tape and Reel vs. Fan-Fold). Pin assignments remain identical across these variants.